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With the rapid development of new energy vehicles, grid-level energy storage systems, and high-power industrial drives, power semiconductor devices are gradually transitioning from traditional IGBTs to SiC technology. Recently, domestic manufacturer Ruilin Semiconductor
RUILIN SEMI launched a new 800V 1200A SiC power module, which adopts an advanced PHD package structure and achieves an ultra-low on-resistance of 2mΩ, demonstrating
significant advantages in high-power-density applications, and has successfully passed verification and entered mass production at a major manufacturer.
Compared to traditional silicon-based power modules, SiC modules offer clear advantages in efficiency, switching speed, and system size. Currently, companies such as
Infineon Technologies, ROHM Semiconductor, Wolfspeed, and Onsemi are also actively promoting the adoption of SiC modules in high-voltage, high-current applications.
PHD Package: Designed for High Power Density Applications
The SiC module launched by RUILIN SEMI adopts the PHD package structure, which is optimized for thermal management and electrical performance.
Key advantages of the PHD package include:
Lower parasitic inductance
Higher current carrying capacity
Optimized heat dissipation path design
More compact system structure
In high-power inverter applications, package design often directly affects system efficiency and reliability. The PHD package optimizes current paths and heat dissipation structures, enabling the module to maintain stable operation under high current conditions.
Efficiency improvement from 2mΩ on-resistance
Among the key parameters of SiC modules, **on-resistance (Rds(on))** is one of the important indicators affecting system efficiency.
RUILIN's 800V 1200A SiC module features an on-resistance as low as 2mΩ, with PHD automotive-grade packaging, significantly reducing conduction losses under high current operating conditions.
This advantage is particularly evident in the following application scenarios:
New Energy Vehicle Main Drive Inverter
Energy Storage PCS Bidirectional Converter
High-Power Industrial Drive System
Photovoltaic Inverter
In these systems, every reduction in power loss means higher system efficiency and lower cooling requirements.
If you want to understand the
performance differences
of different SiC modules in high-current applications, you can refer to our previously published technical analysis article
RL800N1200A SiC Power Module Comparative Analysis
!
For New Energy Vehicles and Energy Storage Systems
As the 800V high-voltage platform gradually becomes a development trend for new energy vehicles, the application of SiC modules in main drive inverters is rapidly increasing.
High-current SiC modules can help vehicle systems achieve:
Higher inverter efficiency
Smaller power module size
More lightweight electric drive systems
Meanwhile, in energy storage systems, high-power PCS equipment is increasingly adopting SiC modules to improve system power density and overall efficiency.
RUILIN Continues to Advance SiC Power Module Technology
As the SiC industry chain matures, high-current power modules are becoming a key component of future power electronic systems. RUILIN will continue to invest in high-power SiC modules, advanced packaging technologies, and high-
efficiency power conversion solutions.
The newly released 800V 1200A SiC module not only expands the company's SiC product line but also provides new high-current solutions for new energy vehicles, energy storage systems, and industrial power electronics applications.
Ensuring safer redundant design for customer products.
